C439 A Knife in the Back
Actually, Lang Hanyun had heard from Faang Ruorann that Moo's mother's attitude towards her had suddenly changed. But at that time, he did not think too much about it. Since he was walking in the business world, he did not have any permanent feelings for her. He might have been hostile for a while, but it did not affect the outcome.
Furthermore, Faang Ruorann had once made Moo's mother like her